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<div class="title">glUtility.h</div>  </div>
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<a href="glUtility_8h.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno">    1</span>&#160;<span class="comment">/*</span></div><div class="line"><a name="l00002"></a><span class="lineno">    2</span>&#160;<span class="comment"> * Copyright (c) 2017, NVIDIA CORPORATION. All rights reserved.</span></div><div class="line"><a name="l00003"></a><span class="lineno">    3</span>&#160;<span class="comment"> *</span></div><div class="line"><a name="l00004"></a><span class="lineno">    4</span>&#160;<span class="comment"> * Permission is hereby granted, free of charge, to any person obtaining a</span></div><div class="line"><a name="l00005"></a><span class="lineno">    5</span>&#160;<span class="comment"> * copy of this software and associated documentation files (the &quot;Software&quot;),</span></div><div class="line"><a name="l00006"></a><span class="lineno">    6</span>&#160;<span class="comment"> * to deal in the Software without restriction, including without limitation</span></div><div class="line"><a name="l00007"></a><span class="lineno">    7</span>&#160;<span class="comment"> * the rights to use, copy, modify, merge, publish, distribute, sublicense,</span></div><div class="line"><a name="l00008"></a><span class="lineno">    8</span>&#160;<span class="comment"> * and/or sell copies of the Software, and to permit persons to whom the</span></div><div class="line"><a name="l00009"></a><span class="lineno">    9</span>&#160;<span class="comment"> * Software is furnished to do so, subject to the following conditions:</span></div><div class="line"><a name="l00010"></a><span class="lineno">   10</span>&#160;<span class="comment"> *</span></div><div class="line"><a name="l00011"></a><span class="lineno">   11</span>&#160;<span class="comment"> * The above copyright notice and this permission notice shall be included in</span></div><div class="line"><a name="l00012"></a><span class="lineno">   12</span>&#160;<span class="comment"> * all copies or substantial portions of the Software.</span></div><div class="line"><a name="l00013"></a><span class="lineno">   13</span>&#160;<span class="comment"> *</span></div><div class="line"><a name="l00014"></a><span class="lineno">   14</span>&#160;<span class="comment"> * THE SOFTWARE IS PROVIDED &quot;AS IS&quot;, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR</span></div><div class="line"><a name="l00015"></a><span class="lineno">   15</span>&#160;<span class="comment"> * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,</span></div><div class="line"><a name="l00016"></a><span class="lineno">   16</span>&#160;<span class="comment"> * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL</span></div><div class="line"><a name="l00017"></a><span class="lineno">   17</span>&#160;<span class="comment"> * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER</span></div><div class="line"><a name="l00018"></a><span class="lineno">   18</span>&#160;<span class="comment"> * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING</span></div><div class="line"><a name="l00019"></a><span class="lineno">   19</span>&#160;<span class="comment"> * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER</span></div><div class="line"><a name="l00020"></a><span class="lineno">   20</span>&#160;<span class="comment"> * DEALINGS IN THE SOFTWARE.</span></div><div class="line"><a name="l00021"></a><span class="lineno">   21</span>&#160;<span class="comment"> */</span></div><div class="line"><a name="l00022"></a><span class="lineno">   22</span>&#160;</div><div class="line"><a name="l00023"></a><span class="lineno">   23</span>&#160;<span class="preprocessor">#ifndef __OPENGL_UTILITY_H</span></div><div class="line"><a name="l00024"></a><span class="lineno">   24</span>&#160;<span class="preprocessor">#define __OPENGL_UTILITY_H</span></div><div class="line"><a name="l00025"></a><span class="lineno">   25</span>&#160;</div><div class="line"><a name="l00026"></a><span class="lineno">   26</span>&#160;</div><div class="line"><a name="l00027"></a><span class="lineno">   27</span>&#160;<span class="preprocessor">#include &lt;GL/glew.h&gt;</span></div><div class="line"><a name="l00028"></a><span class="lineno">   28</span>&#160;<span class="preprocessor">#include &lt;GL/glx.h&gt;</span></div><div class="line"><a name="l00029"></a><span class="lineno">   29</span>&#160;</div><div class="line"><a name="l00030"></a><span class="lineno">   30</span>&#160;<span class="preprocessor">#include &lt;stdio.h&gt;</span></div><div class="line"><a name="l00031"></a><span class="lineno">   31</span>&#160;</div><div class="line"><a name="l00032"></a><span class="lineno">   32</span>&#160;</div><div class="line"><a name="l00037"></a><span class="lineno"><a class="line" href="group__OpenGL.html#gabe9ef8f3c57b226efaf58ab3059bceab">   37</a></span>&#160;<span class="preprocessor">#define LOG_GL                          &quot;[OpenGL] &quot;</span></div><div class="line"><a name="l00038"></a><span class="lineno">   38</span>&#160;</div><div class="line"><a name="l00043"></a><span class="lineno"><a class="line" href="group__OpenGL.html#gaf3b91dc56dd99fa3abbce89be15fef93">   43</a></span>&#160;<span class="preprocessor">#define GL(x)                           { x; glCheckError( #x, __FILE__, __LINE__ ); }</span></div><div class="line"><a name="l00044"></a><span class="lineno">   44</span>&#160;</div><div class="line"><a name="l00049"></a><span class="lineno"><a class="line" href="group__OpenGL.html#ga26503b7a548ff678a4dc5aa73de4c784">   49</a></span>&#160;<span class="preprocessor">#define GL_VERIFY(x)            { x; if(glCheckError( #x, __FILE__, __LINE__ )) return false; }</span></div><div class="line"><a name="l00050"></a><span class="lineno">   50</span>&#160;</div><div class="line"><a name="l00055"></a><span class="lineno"><a class="line" href="group__OpenGL.html#gae16e17292445d5654bb49896cdd49bcd">   55</a></span>&#160;<span class="preprocessor">#define GL_VERIFYN(x)           { x; if(glCheckError( #x, __FILE__, __LINE__ )) return NULL; }</span></div><div class="line"><a name="l00056"></a><span class="lineno">   56</span>&#160;</div><div class="line"><a name="l00061"></a><span class="lineno"><a class="line" href="group__OpenGL.html#ga99a7852633ed1a98e0f1918367355ec0">   61</a></span>&#160;<span class="preprocessor">#define GL_CHECK(msg)           { glCheckError(msg, __FILE__, __LINE__); }</span></div><div class="line"><a name="l00062"></a><span class="lineno">   62</span>&#160;</div><div class="line"><a name="l00067"></a><span class="lineno"><a class="line" href="group__OpenGL.html#gaa1e51833a1b003db2359ea965e501806">   67</a></span>&#160;<span class="keyword">inline</span> <span class="keywordtype">bool</span> <a class="code" href="group__OpenGL.html#gaa1e51833a1b003db2359ea965e501806">glCheckError</a>(<span class="keyword">const</span> <span class="keywordtype">char</span>* msg, <span class="keyword">const</span> <span class="keywordtype">char</span>* file, <span class="keywordtype">int</span> line)</div><div class="line"><a name="l00068"></a><span class="lineno">   68</span>&#160;{</div><div class="line"><a name="l00069"></a><span class="lineno">   69</span>&#160;        GLenum err = glGetError();</div><div class="line"><a name="l00070"></a><span class="lineno">   70</span>&#160;</div><div class="line"><a name="l00071"></a><span class="lineno">   71</span>&#160;        <span class="keywordflow">if</span>( err == GL_NO_ERROR )</div><div class="line"><a name="l00072"></a><span class="lineno">   72</span>&#160;                <span class="keywordflow">return</span> <span class="keyword">false</span>;</div><div class="line"><a name="l00073"></a><span class="lineno">   73</span>&#160;</div><div class="line"><a name="l00074"></a><span class="lineno">   74</span>&#160;        <span class="keyword">const</span> <span class="keywordtype">char</span>* e = NULL;</div><div class="line"><a name="l00075"></a><span class="lineno">   75</span>&#160;</div><div class="line"><a name="l00076"></a><span class="lineno">   76</span>&#160;        <span class="keywordflow">switch</span>(err)</div><div class="line"><a name="l00077"></a><span class="lineno">   77</span>&#160;        {</div><div class="line"><a name="l00078"></a><span class="lineno">   78</span>&#160;                  <span class="keywordflow">case</span> GL_INVALID_ENUM:          e = <span class="stringliteral">&quot;invalid enum&quot;</span>;      <span class="keywordflow">break</span>;</div><div class="line"><a name="l00079"></a><span class="lineno">   79</span>&#160;                  <span class="keywordflow">case</span> GL_INVALID_VALUE:         e = <span class="stringliteral">&quot;invalid value&quot;</span>;     <span class="keywordflow">break</span>;</div><div class="line"><a name="l00080"></a><span class="lineno">   80</span>&#160;                  <span class="keywordflow">case</span> GL_INVALID_OPERATION:     e = <span class="stringliteral">&quot;invalid operation&quot;</span>; <span class="keywordflow">break</span>;</div><div class="line"><a name="l00081"></a><span class="lineno">   81</span>&#160;                  <span class="keywordflow">case</span> GL_STACK_OVERFLOW:        e = <span class="stringliteral">&quot;stack overflow&quot;</span>;    <span class="keywordflow">break</span>;</div><div class="line"><a name="l00082"></a><span class="lineno">   82</span>&#160;                  <span class="keywordflow">case</span> GL_STACK_UNDERFLOW:       e = <span class="stringliteral">&quot;stack underflow&quot;</span>;   <span class="keywordflow">break</span>;</div><div class="line"><a name="l00083"></a><span class="lineno">   83</span>&#160;                  <span class="keywordflow">case</span> GL_OUT_OF_MEMORY:         e = <span class="stringliteral">&quot;out of memory&quot;</span>;     <span class="keywordflow">break</span>;</div><div class="line"><a name="l00084"></a><span class="lineno">   84</span>&#160;<span class="preprocessor">                #ifdef GL_TABLE_TOO_LARGE_EXT</span></div><div class="line"><a name="l00085"></a><span class="lineno">   85</span>&#160;                  <span class="keywordflow">case</span> GL_TABLE_TOO_LARGE_EXT:   e = <span class="stringliteral">&quot;table too large&quot;</span>;   <span class="keywordflow">break</span>;</div><div class="line"><a name="l00086"></a><span class="lineno">   86</span>&#160;<span class="preprocessor">                #endif</span></div><div class="line"><a name="l00087"></a><span class="lineno">   87</span>&#160;<span class="preprocessor">                #ifdef GL_TEXTURE_TOO_LARGE_EXT</span></div><div class="line"><a name="l00088"></a><span class="lineno">   88</span>&#160;                  <span class="keywordflow">case</span> GL_TEXTURE_TOO_LARGE_EXT: e = <span class="stringliteral">&quot;texture too large&quot;</span>; <span class="keywordflow">break</span>;</div><div class="line"><a name="l00089"></a><span class="lineno">   89</span>&#160;<span class="preprocessor">                #endif</span></div><div class="line"><a name="l00090"></a><span class="lineno">   90</span>&#160;                  <span class="keywordflow">default</span>:                                               e = <span class="stringliteral">&quot;unknown error&quot;</span>;</div><div class="line"><a name="l00091"></a><span class="lineno">   91</span>&#160;        }</div><div class="line"><a name="l00092"></a><span class="lineno">   92</span>&#160;</div><div class="line"><a name="l00093"></a><span class="lineno">   93</span>&#160;        printf(<a class="code" href="group__OpenGL.html#gabe9ef8f3c57b226efaf58ab3059bceab">LOG_GL</a> <span class="stringliteral">&quot;Error %i - &#39;%s&#39;\n&quot;</span>, (uint)err, e);</div><div class="line"><a name="l00094"></a><span class="lineno">   94</span>&#160;        printf(<a class="code" href="group__OpenGL.html#gabe9ef8f3c57b226efaf58ab3059bceab">LOG_GL</a> <span class="stringliteral">&quot;   %s::%i\n&quot;</span>, file, line );</div><div class="line"><a name="l00095"></a><span class="lineno">   95</span>&#160;        printf(<a class="code" href="group__OpenGL.html#gabe9ef8f3c57b226efaf58ab3059bceab">LOG_GL</a> <span class="stringliteral">&quot;   %s\n&quot;</span>, msg );</div><div class="line"><a name="l00096"></a><span class="lineno">   96</span>&#160;        </div><div class="line"><a name="l00097"></a><span class="lineno">   97</span>&#160;        <span class="keywordflow">return</span> <span class="keyword">true</span>;</div><div class="line"><a name="l00098"></a><span class="lineno">   98</span>&#160;}</div><div class="line"><a name="l00099"></a><span class="lineno">   99</span>&#160;</div><div class="line"><a name="l00100"></a><span class="lineno">  100</span>&#160;</div><div class="line"><a name="l00105"></a><span class="lineno"><a class="line" href="group__OpenGL.html#ga9c5211ebc6e2eee2b12288cd52c4236e">  105</a></span>&#160;<span class="keyword">inline</span> <span class="keywordtype">bool</span> <a class="code" href="group__OpenGL.html#gaa1e51833a1b003db2359ea965e501806">glCheckError</a>(<span class="keyword">const</span> <span class="keywordtype">char</span>* msg)</div><div class="line"><a name="l00106"></a><span class="lineno">  106</span>&#160;{</div><div class="line"><a name="l00107"></a><span class="lineno">  107</span>&#160;        GLenum err = glGetError();</div><div class="line"><a name="l00108"></a><span class="lineno">  108</span>&#160;</div><div class="line"><a name="l00109"></a><span class="lineno">  109</span>&#160;        <span class="keywordflow">if</span>( err == GL_NO_ERROR )</div><div class="line"><a name="l00110"></a><span class="lineno">  110</span>&#160;                <span class="keywordflow">return</span> <span class="keyword">false</span>;</div><div class="line"><a name="l00111"></a><span class="lineno">  111</span>&#160;</div><div class="line"><a name="l00112"></a><span class="lineno">  112</span>&#160;        <span class="keyword">const</span> <span class="keywordtype">char</span>* e = NULL;</div><div class="line"><a name="l00113"></a><span class="lineno">  113</span>&#160;</div><div class="line"><a name="l00114"></a><span class="lineno">  114</span>&#160;        <span class="keywordflow">switch</span>(err)</div><div class="line"><a name="l00115"></a><span class="lineno">  115</span>&#160;        {</div><div class="line"><a name="l00116"></a><span class="lineno">  116</span>&#160;                  <span class="keywordflow">case</span> GL_INVALID_ENUM:          e = <span class="stringliteral">&quot;invalid enum&quot;</span>;      <span class="keywordflow">break</span>;</div><div class="line"><a name="l00117"></a><span class="lineno">  117</span>&#160;                  <span class="keywordflow">case</span> GL_INVALID_VALUE:         e = <span class="stringliteral">&quot;invalid value&quot;</span>;     <span class="keywordflow">break</span>;</div><div class="line"><a name="l00118"></a><span class="lineno">  118</span>&#160;                  <span class="keywordflow">case</span> GL_INVALID_OPERATION:     e = <span class="stringliteral">&quot;invalid operation&quot;</span>; <span class="keywordflow">break</span>;</div><div class="line"><a name="l00119"></a><span class="lineno">  119</span>&#160;                  <span class="keywordflow">case</span> GL_STACK_OVERFLOW:        e = <span class="stringliteral">&quot;stack overflow&quot;</span>;    <span class="keywordflow">break</span>;</div><div class="line"><a name="l00120"></a><span class="lineno">  120</span>&#160;                  <span class="keywordflow">case</span> GL_STACK_UNDERFLOW:       e = <span class="stringliteral">&quot;stack underflow&quot;</span>;   <span class="keywordflow">break</span>;</div><div class="line"><a name="l00121"></a><span class="lineno">  121</span>&#160;                  <span class="keywordflow">case</span> GL_OUT_OF_MEMORY:         e = <span class="stringliteral">&quot;out of memory&quot;</span>;     <span class="keywordflow">break</span>;</div><div class="line"><a name="l00122"></a><span class="lineno">  122</span>&#160;<span class="preprocessor">                #ifdef GL_TABLE_TOO_LARGE_EXT</span></div><div class="line"><a name="l00123"></a><span class="lineno">  123</span>&#160;                  <span class="keywordflow">case</span> GL_TABLE_TOO_LARGE_EXT:   e = <span class="stringliteral">&quot;table too large&quot;</span>;   <span class="keywordflow">break</span>;</div><div class="line"><a name="l00124"></a><span class="lineno">  124</span>&#160;<span class="preprocessor">                #endif</span></div><div class="line"><a name="l00125"></a><span class="lineno">  125</span>&#160;<span class="preprocessor">                #ifdef GL_TEXTURE_TOO_LARGE_EXT</span></div><div class="line"><a name="l00126"></a><span class="lineno">  126</span>&#160;                  <span class="keywordflow">case</span> GL_TEXTURE_TOO_LARGE_EXT: e = <span class="stringliteral">&quot;texture too large&quot;</span>; <span class="keywordflow">break</span>;</div><div class="line"><a name="l00127"></a><span class="lineno">  127</span>&#160;<span class="preprocessor">                #endif</span></div><div class="line"><a name="l00128"></a><span class="lineno">  128</span>&#160;                  <span class="keywordflow">default</span>:                                               e = <span class="stringliteral">&quot;unknown error&quot;</span>;</div><div class="line"><a name="l00129"></a><span class="lineno">  129</span>&#160;        }</div><div class="line"><a name="l00130"></a><span class="lineno">  130</span>&#160;</div><div class="line"><a name="l00131"></a><span class="lineno">  131</span>&#160;        printf(<a class="code" href="group__OpenGL.html#gabe9ef8f3c57b226efaf58ab3059bceab">LOG_GL</a> <span class="stringliteral">&quot;%s    (error %i - %s)\n&quot;</span>, msg, (uint)err, e);</div><div class="line"><a name="l00132"></a><span class="lineno">  132</span>&#160;        <span class="keywordflow">return</span> <span class="keyword">true</span>;</div><div class="line"><a name="l00133"></a><span class="lineno">  133</span>&#160;}</div><div class="line"><a name="l00134"></a><span class="lineno">  134</span>&#160;</div><div class="line"><a name="l00135"></a><span class="lineno">  135</span>&#160;</div><div class="line"><a name="l00136"></a><span class="lineno">  136</span>&#160;</div><div class="line"><a name="l00137"></a><span class="lineno"><a class="line" href="glUtility_8h.html#ad36bf08b723b4d19079cf67054a28c10">  137</a></span>&#160;<span class="preprocessor">#define GL_GPU_MEM_INFO_TOTAL_AVAILABLE_MEM_NVX 0x9048</span></div><div class="line"><a name="l00138"></a><span class="lineno"><a class="line" href="glUtility_8h.html#a6742682a27903641a258e686a0db0368">  138</a></span>&#160;<span class="preprocessor">#define GL_GPU_MEM_INFO_CURRENT_AVAILABLE_MEM_NVX 0x9049</span></div><div class="line"><a name="l00139"></a><span class="lineno">  139</span>&#160;</div><div class="line"><a name="l00140"></a><span class="lineno">  140</span>&#160;</div><div class="line"><a name="l00145"></a><span class="lineno"><a class="line" href="group__OpenGL.html#gae70530a98d9a14c84fffea7e3f3083ab">  145</a></span>&#160;<span class="keyword">inline</span> <span class="keywordtype">void</span> <a class="code" href="group__OpenGL.html#gae70530a98d9a14c84fffea7e3f3083ab">glPrintFreeMem</a>()</div><div class="line"><a name="l00146"></a><span class="lineno">  146</span>&#160;{</div><div class="line"><a name="l00147"></a><span class="lineno">  147</span>&#160;        GLint total_mem_kb = 0;</div><div class="line"><a name="l00148"></a><span class="lineno">  148</span>&#160;        GLint cur_avail_mem_kb = 0;</div><div class="line"><a name="l00149"></a><span class="lineno">  149</span>&#160;</div><div class="line"><a name="l00150"></a><span class="lineno">  150</span>&#160;        glGetIntegerv(<a class="code" href="glUtility_8h.html#ad36bf08b723b4d19079cf67054a28c10">GL_GPU_MEM_INFO_TOTAL_AVAILABLE_MEM_NVX</a>, &amp;total_mem_kb);</div><div class="line"><a name="l00151"></a><span class="lineno">  151</span>&#160;        glGetIntegerv(<a class="code" href="glUtility_8h.html#a6742682a27903641a258e686a0db0368">GL_GPU_MEM_INFO_CURRENT_AVAILABLE_MEM_NVX</a>,&amp;cur_avail_mem_kb);</div><div class="line"><a name="l00152"></a><span class="lineno">  152</span>&#160;</div><div class="line"><a name="l00153"></a><span class="lineno">  153</span>&#160;        printf(<a class="code" href="group__OpenGL.html#gabe9ef8f3c57b226efaf58ab3059bceab">LOG_GL</a> <span class="stringliteral">&quot;GPU memory free    %i / %i kb\n&quot;</span>, cur_avail_mem_kb, total_mem_kb);</div><div class="line"><a name="l00154"></a><span class="lineno">  154</span>&#160;}</div><div class="line"><a name="l00155"></a><span class="lineno">  155</span>&#160;</div><div class="line"><a name="l00156"></a><span class="lineno">  156</span>&#160;</div><div class="line"><a name="l00157"></a><span class="lineno">  157</span>&#160;</div><div class="line"><a name="l00158"></a><span class="lineno">  158</span>&#160;<span class="preprocessor">#endif</span></div><div class="line"><a name="l00159"></a><span class="lineno">  159</span>&#160;</div><div class="ttc" id="glUtility_8h_html_ad36bf08b723b4d19079cf67054a28c10"><div class="ttname"><a href="glUtility_8h.html#ad36bf08b723b4d19079cf67054a28c10">GL_GPU_MEM_INFO_TOTAL_AVAILABLE_MEM_NVX</a></div><div class="ttdeci">#define GL_GPU_MEM_INFO_TOTAL_AVAILABLE_MEM_NVX</div><div class="ttdef"><b>Definition:</b> glUtility.h:137</div></div>
<div class="ttc" id="group__OpenGL_html_gabe9ef8f3c57b226efaf58ab3059bceab"><div class="ttname"><a href="group__OpenGL.html#gabe9ef8f3c57b226efaf58ab3059bceab">LOG_GL</a></div><div class="ttdeci">#define LOG_GL</div><div class="ttdoc">OpenGL logging prefix. </div><div class="ttdef"><b>Definition:</b> glUtility.h:37</div></div>
<div class="ttc" id="group__OpenGL_html_gaa1e51833a1b003db2359ea965e501806"><div class="ttname"><a href="group__OpenGL.html#gaa1e51833a1b003db2359ea965e501806">glCheckError</a></div><div class="ttdeci">bool glCheckError(const char *msg, const char *file, int line)</div><div class="ttdoc">OpenGL error-checking messsage function. </div><div class="ttdef"><b>Definition:</b> glUtility.h:67</div></div>
<div class="ttc" id="group__OpenGL_html_gae70530a98d9a14c84fffea7e3f3083ab"><div class="ttname"><a href="group__OpenGL.html#gae70530a98d9a14c84fffea7e3f3083ab">glPrintFreeMem</a></div><div class="ttdeci">void glPrintFreeMem()</div><div class="ttdoc">Print the amount of free GPU memory. </div><div class="ttdef"><b>Definition:</b> glUtility.h:145</div></div>
<div class="ttc" id="glUtility_8h_html_a6742682a27903641a258e686a0db0368"><div class="ttname"><a href="glUtility_8h.html#a6742682a27903641a258e686a0db0368">GL_GPU_MEM_INFO_CURRENT_AVAILABLE_MEM_NVX</a></div><div class="ttdeci">#define GL_GPU_MEM_INFO_CURRENT_AVAILABLE_MEM_NVX</div><div class="ttdef"><b>Definition:</b> glUtility.h:138</div></div>
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